Lenovo 3000 J200 (type 9691) BIOS Unlock Request

Hi,

I'm trying to get the OC'ing options in my BIOS with no luck.
Please help me enabling the OC'ing settings.
System: Lenovo 3000 J200 (type 9691) 34G
BIOS URL: http://download.lenovo.com/ibmdl/pub/pc/...y53usa.exe
BIOS DOWNLOAD SOURCE: http://support.lenovo.com/en_US/download...D=DS001686

Thanks in advance